APA (7th ed.) Citation

Milwaukee Public Museum. Rudolph J. Nunnemacher Collection & Wolff, E. G. (1945). Ballard rifles in the Henry J. Nunnemacher collection. [publisher not identified].

Chicago Style (17th ed.) Citation

Milwaukee Public Museum. Rudolph J. Nunnemacher Collection and Eldon G. Wolff. Ballard Rifles in the Henry J. Nunnemacher Collection. Milwaukee: [publisher not identified], 1945.

MLA (9th ed.) Citation

Milwaukee Public Museum. Rudolph J. Nunnemacher Collection and Eldon G. Wolff. Ballard Rifles in the Henry J. Nunnemacher Collection. [publisher not identified], 1945.